How does photosynthesis affect our carbon footprint?

What is the formula of the ionic compound composed of calcium cations and chloride anions

What two factors can affect the properties of a hydrocarbon? a. the number of its carbon atoms and the number of single bonds b. the number of its carbon atoms and the arrangement of its atoms c. the arrangement of its atoms and the number of its double bonds

How many moles of na2s2o3 are needed to react with 0.12mol of cl2? show work.